Centsys D3 User Manual page 17

protection circuitry will not connect the battery to the converter.
The DC Converter module has three status LEDs. These LEDs indicate battery
status, AC mains status, and lastly the temperature of the converter. The LEDs
operate in the following manner:
LED
Battery
status
AC Mains
Converter
temperature
The converter module has a current limiting fuse on the high-voltage supply. Caution
must be exercised when checking this fuse.
The procedure to replace the fuse is outlined below:
1. Disconnect the mains from the entire system. This includes the A10, and
the converter module
2. Disconnect the battery
3. Disconnect the six-way header that connects the converter module to the
A10. The converter module is now off, and the board is safe to handle
4. Remove the fuse protection housing (If the housing is still in place)
5. Remove the fuse and replace it with a 5A, 250V, fast-blow fuse. (Dimensions
5mm x 20mm)
6. Reconnect the six-way header
7. Reconnect the battery
8. Reconnect the mains
Upon reconnecting, if the converter module fails to function correctly in the event of
a power failure, refer to an installer or service technician.
When ON,
it indicates:
Battery is
fully charged
Mains
present
DC converter will
shut down until it
Overheated
normal operating
temperature range
Logic
has cooled to
Page 17
When OFF,
it indicates:
DC converter will
shut down until
Voltage
battery reaches
low
normal operating
DC converter will
power A10 until
Mains
mains restored or
failure
battery voltage <
Converter
temperature
normal
Logic
voltage.
threshold.